Summary of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 29, 2012

Summary of Marketable Securities

The Company has one investment in a publicly traded security and the following reconciles its cost basis to its fair market value as of September 29, 2012. There were no marketable securities at September 24, 2011.

	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Equity security	$	5,931	$	98	$	—	$	6,029

Supplemental Cash Flow Statement Information

Supplemental Cash Flow Statement Information

	Years ended
	September 29, 2012		September 24, 2011		September 25, 2010
Cash paid during the period for income taxes	$	166,565	$	118,850	$	130,486
Cash paid during the period for interest	$	55,045	$	36,268	$	39,382
Non-Cash Investing Activities:
Fair value of stock options assumed in the Gen-Probe acquisition	$	2,655	$	—	$	—
Additional acquisition contingent consideration accrued	$	—	$	18,924	$	32,489
Non-Cash Financing Activities:
Fair value of contingent consideration at acquisition	$	—	$	86,600	$	29,500
Deferred payments for acquisitions	$	1,655	$	47,258	$	—

Schedule of Inventories

Inventories consisted of the following:

	September 29, 2012		September 24, 2011
Raw materials	$	134,983	$	119,991
Work-in-process		93,218		23,908
Finished goods		138,990		86,645
	$	367,191	$	230,544

Estimated Useful Lives of Property and Equipments

Property and equipment are depreciated over the following estimated useful lives:

Asset Classification	Estimated Useful Life
Building and improvements	35–40 years
Equipment and software	3–10 years
Equipment under customer usage agreements	3–8 years
Furniture and fixtures	5–7 years
Leasehold improvements	Shorter of the Original Term of Lease or Estimated Useful Life

Schedule of Intangible Assets

Intangible assets consist of the following:

	As of September 29, 2012				As of September 24, 2011
Description	Gross Carrying Value		Accumulated Amortization		Gross Carrying Value		Accumulated Amortization
Developed technology	$	3,784,689	$	788,274	$	2,215,323	$	586,647
In-process research and development		227,000		—		840		—
Customer relationships and contracts		1,097,842		205,612		507,974		150,039
Trade names		240,092		60,318		142,799		44,267
Patents		11,417		7,906		9,937		7,752
Business licenses		2,577		344		2,535		81
Non-compete agreements		310		223		297		112
	$	5,363,927	$	1,062,677	$	2,879,705	$	788,898

Schedule of Estimated Amortization Expense

The estimated amortization expense at September 29, 2012 for each of the five succeeding fiscal years is as follows:

Fiscal 2013	$	413,310
Fiscal 2014		398,747
Fiscal 2015		383,914
Fiscal 2016		370,106
Fiscal 2017		361,061

Rollforward of Goodwill Activity by Reportable Segment

A rollforward of goodwill activity by reportable segment from September 24, 2011 to September 29, 2012 is as follows:

	Breast Health			Diagnostics			GYN Surgical			Skeletal Health			Total
Balance at September 24, 2011	$	638,887		$	633,319		$	1,009,973		$	8,151		$	2,290,330
Gen-Probe acquisition		—			1,652,546			—			—			1,652,546
Impairment charge		(5,826	)		—			—			—			(5,826	)
Tax adjustments		—			(1,315	)		6,212			—			4,897
Foreign currency		2,082			907			325			(26	)		3,288
Other adjustments		598			(2,010	)		(1,044	)		—			(2,456	)
Balance at September 29, 2012	$	635,741		$	2,283,447		$	1,015,466		$	8,125		$	3,942,779

Rollforward of Accumulated Goodwill Impairment Losses by Reportable Segment

A rollforward of accumulated goodwill impairment losses by reportable segment from September 24, 2011 to September 29, 2012 is as follows:

	Breast Health		Diagnostics		GYN Surgical		Total
Balance at September 24, 2011	$	342,593	$	908,349	$	1,165,804	$	2,416,746
Impairment charge		5,826		—		—		5,826
Balance at September 29, 2012	$	348,419	$	908,349	$	1,165,804	$	2,422,572

Schedule of Other Assets

Other assets consist of the following:

	September 29, 2012		September 24, 2011
Other Assets
Deferred financing costs	$	82,760	$	11,918
Life insurance contracts		25,978		22,736
Mutual funds		6,995		—
Marketable security		6,029		—
Manufacturing access fees		18,323		—
Cost-method equity investments		15,976		4,608
Other		6,006		6,815
	$	162,067	$	46,077

Components of Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income consisted of the following:

	September 29, 2012			September 24, 2011
Foreign currency translation adjustment	$	7,211		$	994
Unrealized gains on available-for-sale securities, net of tax of $36		62			—
Minimum pension liability, net of tax of $207 and $300, respectively		(483	)		1,001
	$	6,790		$	1,995

Accounts Receivable Reserve Activity

Accounts receivable reserve activity for fiscal 2012, 2011 and 2010 is as follows:

	Balance at Beginning of Period		Charged to Costs and Expenses		Write- offs and Payments			Balance at End of Period
Period Ended:
September 29, 2012	$	6,516	$	3,270	$	(3,390	)	$	6,396
September 24, 2011	$	7,769	$	1,614	$	(2,867	)	$	6,516
September 25, 2010	$	7,279	$	1,895	$	(1,405	)	$	7,769

Schedule of Reconciliation of Basic and Diluted Share Amounts

A calculation of net income (loss) per share and a reconciliation of basic and diluted share amounts for fiscal 2012, 2011, and 2010 is as follows:

	September 29, 2012			September 24, 2011		September 25, 2010
Numerator:
Net (loss) income	$	(73,634	)	$	157,150	$	(62,813	)
Denominator:
Basic weighted average common shares outstanding		264,041			261,099		258,743
Weighted average common stock equivalents from assumed exercise of stock options and restricted stock units		—			3,206		—
Diluted weighted average common shares outstanding		264,041			264,305		258,743
Basic net (loss) income per common share	$	(0.28	)	$	0.60	$	(0.24	)
Diluted net (loss) income per common share	$	(0.28	)	$	0.59	$	(0.24	)
Weighted-average anti-dilutive shares related to:
Outstanding stock options		10,491			7,747		13,260
Restricted stock units		1,378			—		1,427

Schedule of Product Warranty Activity

Product warranty activity for fiscal 2012 and 2011 is as follows:

	Balance at Beginning of Period		Provisions		Acquired		Settlements/ adjustments			Balance at End of Period
Period ended:
September 29, 2012	$	4,448	$	9,535	$	230	$	(8,034	)	$	6,179
September 24, 2011	$	2,830	$	5,535	$	657	$	(4,574	)	$	4,448